How to take sum from two tables

Question

Hai all

I have two tables. table1 and table2 as follows

Table1

id	date	amnt
1	01/01/2011	100
1	05/01/2011	100
1	10/01/2011	50
1	16/01/2011	500
1	17/01/2011	550
2	01/01/2011	10
2	15/01/2011	100
2	18/01/2011	800
2	20/01/2011	450
3	10/01/2011	15

Table2

id	nan	hnm
1	Madhu	Namparayil
2	Anoop	Puthenveettil
3	Dhanya	Payyampallil

I want id, nam,hnm, sum(amnt) of the above three customers as follows
1-Madhu   - Namparayil     - 1300
2-Anoop   - Puthenveettil  - 1360 
3-Dhanya - Payyampallil    -  15
 Please give SQL command using c#